EP 3504278 A1 20190703 - METHOD FOR PRODUCING A COATING SYSTEM WITH AN AQUEOUS BASECOAT
Title (en)
METHOD FOR PRODUCING A COATING SYSTEM WITH AN AQUEOUS BASECOAT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER LACKIERUNG UNTER EINSATZ EINES WÄSSRIGEN BASISLACKS
Title (fr)
PROCÉDÉ DE FABRICATION D'UN LAQUAGE EN UTILISANT UNE LAQUE DE BASE AQUEUSE
Publication
Application
Priority
- EP 16185538 A 20160824
- EP 2017070597 W 20170814
Abstract (en)
[origin: WO2018036855A1] The present invention relates to a method for producing a coating system on a substrate, comprising producing a cured basecoat film on the substrate by applying a pigmented aqueous basecoat material to the substrate and subsequently curing the basecoat material, where the basecoat material comprises a polyether-based reaction product which is preparable by reaction of (a) at least one cyclic tetracarboxylic dianhydride having an aliphatic, aromatic or araliphatic radical X which bridges the two anhydride groups, with (b) at least one polyether of the general structural formula (II) in which R is a C3 to C6 alkylene radical and n is selected such that the polyether (b) possesses a number-average molecular weight of 500 to 5000 g/mol, where components (a) and (b) are used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possesses an acid number of 5 to 80 mg KOH/g, and where the cured basecoat film represents at least partially the uppermost coat of the coating system produced.
IPC 8 full level
C09D 7/40 (2018.01)
CPC (source: EP KR RU US)
B05D 7/04 (2013.01 - KR); B05D 7/14 (2013.01 - KR); B05D 7/24 (2013.01 - KR); B05D 7/532 (2013.01 - KR); C08G 18/10 (2013.01 - EP US); C08G 18/3271 (2013.01 - EP US); C08G 18/348 (2013.01 - EP US); C08G 18/4288 (2013.01 - EP US); C08G 18/6659 (2013.01 - EP US); C08G 18/755 (2013.01 - EP US); C08G 18/8108 (2013.01 - EP US); C08G 63/668 (2013.01 - EP US); C08G 63/672 (2013.01 - EP RU US); C08G 63/688 (2013.01 - RU); C08G 63/6884 (2013.01 - EP US); C08G 65/332 (2013.01 - EP RU US); C08G 65/3328 (2013.01 - US); C09D 7/40 (2017.12 - RU); C09D 7/65 (2017.12 - EP KR US); C09D 167/00 (2013.01 - RU US); C09D 167/02 (2013.01 - RU); C09D 167/025 (2013.01 - KR US); C09D 171/02 (2013.01 - US); C09D 175/04 (2013.01 - RU); C09D 175/16 (2013.01 - EP KR US); C09D 187/005 (2013.01 - US); C08G 2150/00 (2013.01 - US)
Citation (search report)
See references of WO 2018036855A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018036855 A1 20180301; BR 112018077450 A2 20190402; CN 109642111 A 20190416; CN 109642111 B 20211123; EP 3504278 A1 20190703; EP 3504278 B1 20201007; ES 2841775 T3 20210709; JP 2019531879 A 20191107; JP 6896065 B2 20210630; KR 102445645 B1 20220921; KR 20190042577 A 20190424; MX 2019002175 A 20190708; RU 2746777 C1 20210420; US 11046866 B2 20210629; US 2019194490 A1 20190627
DOCDB simple family (application)
EP 2017070597 W 20170814; BR 112018077450 A 20170814; CN 201780051000 A 20170814; EP 17754150 A 20170814; ES 17754150 T 20170814; JP 2019511369 A 20170814; KR 20197004982 A 20170814; MX 2019002175 A 20170814; RU 2019107506 A 20170814; US 201716327407 A 20170814